12001132 has 24 divisors (see below), whose sum is σ = 24674832. Its totient is φ = 5035200.

The previous prime is 12001117. The next prime is 12001139. The reversal of 12001132 is 23110021.

It is not an unprimeable number, because it can be changed into a prime (12001139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9919 + ... + 11062.

It is an arithmetic number, because the mean of its divisors is an integer number (1028118).

Almost surely, 2^12001132 is an apocalyptic number.

It is an amenable number.

12001132 is an abundant number, since it is smaller than the sum of its proper divisors (12673700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001132 is a wasteful number, since it uses less digits than its factorization.

12001132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21009 (or 21007 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12001132 is about 3464.2650014108. The cubic root of 12001132 is about 228.9500472650.

Adding to 12001132 its reverse (23110021), we get a palindrome (35111153).

Subtracting 12001132 from its reverse (23110021), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1200 and 1132, that added together give a palindrome (2332).

The spelling of 12001132 in words is "twelve million, one thousand, one hundred thirty-two".